GABA AntagonistsBicucullinegamma-Aminobutyric AcidBethanechol CompoundsPicrotoxinStrychnineAminobutyratesMuscimolGABA-A Receptor AntagonistsReceptors, GABA-APyridazinesBaclofenInjectionsGABA AgonistsNeural InhibitionNeuronsGABA AgentsBehavior, AnimalGABA ModulatorsAction PotentialsRats, Sprague-DawleyGABA Plasma Membrane Transport ProteinsDose-Response Relationship, DrugReceptors, GABA-BExcitatory Amino Acid AntagonistsDopamine AntagonistsInjections, IntravenousHormone AntagonistsMotor ActivityGABA Uptake InhibitorsNarcotic AntagonistsInjections, IntramuscularNeurokinin-1 Receptor AntagonistsTime FactorsGABA-A Receptor AgonistsInjections, IntraventricularBehavioral SymptomsBrainInjections, SubcutaneousRats, WistarMuscarinic AntagonistsDisease Models, AnimalHistamine H2 AntagonistsPiperidinesInterleukin 1 Receptor Antagonist ProteinInjections, IntraperitonealInjections, IntralesionalInjections, Intra-ArticularHippocampusGABA-B Receptor AntagonistsMice, Inbred C57BLBehavioral SciencesHistamine H1 AntagonistsSynaptic TransmissionMicroinjectionsBehavioral MedicineAnalysis of VarianceNipecotic AcidsPurinergic P1 Receptor AntagonistsNicotinic AntagonistsGABA-B Receptor AgonistsHistamine AntagonistsPhosphinic AcidsPatch-Clamp TechniquesInjections, SpinalAdenosine A2 Receptor AntagonistsDopamineExploratory BehaviorAdrenergic alpha-1 Receptor AntagonistsElectric StimulationBehaviorPurinergic P2 Receptor AntagonistsMaze LearningSerotonin 5-HT3 Receptor AntagonistsSerotonin 5-HT2 Receptor AntagonistsReceptors, N-Methyl-D-AspartateDrug InteractionsSerotoninGlutamic AcidBehavioral ResearchDiazepamGenetics, BehavioralAnimals, NewbornElectrophysiologyInjections, IntradermalCocaineCells, CulturedAdenosine A1 Receptor AntagonistsDizocilpine MaleateRats, Long-EvansAvoidance LearningAdrenergic alpha-2 Receptor AntagonistsReceptors, SerotoninSynapsesCerebral CortexAdrenergic alpha-AntagonistsNaltrexoneMice, KnockoutConditioning, OperantBenzazepines